function renderTime(){
    const left = document.querySelector(".left")
    const time = new Date();
    const yea = time.getFullYear()
    const mon = time.getMonth()+1
    const day = time.getDay()
    const hou = time.getHours()
    const min = time.getMinutes()
    const sec = time.getSeconds();
    const tt = `${yea}年${mon}月${day}日${hou}时${min}分${sec}秒`
    left.innerHTML = tt;
   setInterval(()=>{
   const left = document.querySelector(".left")
    const time = new Date();
    const yea = time.getFullYear()
    const mon = time.getMonth()+1
    const day = time.getDay()
    const hou = time.getHours()
    const min = time.getMinutes()
    const sec = time.getSeconds();
    const tt = `${yea}年${mon}月${day}日${hou}时${min}分${sec}秒`
    left.innerHTML = tt;
   },1000)
   }
    renderTime();